Basic Principles of Frequency Modulation
Some good shots to be logged
Producer U.S. War Department, Army Pictorial ServiceProduction Company U.S. War DepartmentSponsor U.S. War DepartmentAudio/Visual sound, color
Title: "This film will not be shown to the public without permission of the War Department."
CU AM/FM radio dial
CU violinist in front of radio microphone
VS two-way radio being used in combat
Many great chalk talks, diagrams, animation showing technical aspects of radio transmission